[PATCH] ARM: stm32: Add boot counter to DHSOM

[Patrice CHOTARD]

On 10/27/22 23:17, Marek Vasut wrote:
> Add boot counter to STM32MP15xx DHSOM. This aligns the software with
> other upstream DHSOM products which already do enable boot counter.
> 
> The boot counter on STM32MP15xx is placed in the TAMP block TAMP_BKPxR
> register 19, right past register 17 and 18 used for CM4 resource table
> and state by the Linux kernel. The TAMP_BKPxR register block is used
> because its contents survives warm reset, but not cold reset.
> 
> Signed-off-by: Marek Vasut <marex at denx.de>
> Cc: Patrice Chotard <patrice.chotard at foss.st.com>
> Cc: Patrick Delaunay <patrick.delaunay at foss.st.com>
> ---
>  configs/stm32mp15_dhcom_basic_defconfig | 5 +++++
>  configs/stm32mp15_dhcor_basic_defconfig | 5 +++++
>  2 files changed, 10 insertions(+)
> 
> diff --git a/configs/stm32mp15_dhcom_basic_defconfig b/configs/stm32mp15_dhcom_basic_defconfig
> index 3ba396b9671..c8093c4e152 100644
> --- a/configs/stm32mp15_dhcom_basic_defconfig
> +++ b/configs/stm32mp15_dhcom_basic_defconfig
> @@ -8,6 +8,8 @@ CONFIG_DEFAULT_DEVICE_TREE="stm32mp15xx-dhcom-pdk2"
>  CONFIG_SPL_TEXT_BASE=0x2FFC2500
>  CONFIG_SYS_PROMPT="STM32MP> "
>  CONFIG_SPL_MMC=y
> +CONFIG_BOOTCOUNT_BOOTLIMIT=3
> +CONFIG_SYS_BOOTCOUNT_ADDR=0x5C00A14C
>  CONFIG_SPL=y
>  CONFIG_TARGET_DH_STM32MP1_PDK2=y
>  CONFIG_SPL_SPI_FLASH_SUPPORT=y
> @@ -74,6 +76,7 @@ CONFIG_CMD_SPI=y
>  CONFIG_CMD_USB=y
>  CONFIG_CMD_USB_MASS_STORAGE=y
>  CONFIG_SYS_DISABLE_AUTOLOAD=y
> +CONFIG_CMD_BOOTCOUNT=y
>  CONFIG_CMD_CACHE=y
>  CONFIG_CMD_TIME=y
>  CONFIG_CMD_TIMER=y
> @@ -99,6 +102,8 @@ CONFIG_IP_DEFRAG=y
>  CONFIG_TFTP_TSIZE=y
>  CONFIG_STM32_ADC=y
>  CONFIG_SPL_BLOCK_CACHE=y
> +CONFIG_BOOTCOUNT_LIMIT=y
> +CONFIG_SYS_BOOTCOUNT_MAGIC=0xB0C40000
>  CONFIG_DFU_MMC=y
>  CONFIG_DFU_MTD=y
>  CONFIG_DFU_RAM=y
> diff --git a/configs/stm32mp15_dhcor_basic_defconfig b/configs/stm32mp15_dhcor_basic_defconfig
> index ddd96ac4d29..7b2b92e15e3 100644
> --- a/configs/stm32mp15_dhcor_basic_defconfig
> +++ b/configs/stm32mp15_dhcor_basic_defconfig
> @@ -8,6 +8,8 @@ CONFIG_DEFAULT_DEVICE_TREE="stm32mp15xx-dhcor-avenger96"
>  CONFIG_SPL_TEXT_BASE=0x2FFC2500
>  CONFIG_SYS_PROMPT="STM32MP> "
>  CONFIG_SPL_MMC=y
> +CONFIG_BOOTCOUNT_BOOTLIMIT=3
> +CONFIG_SYS_BOOTCOUNT_ADDR=0x5C00A14C
>  CONFIG_SPL=y
>  CONFIG_TARGET_DH_STM32MP1_PDK2=y
>  CONFIG_SPL_SPI_FLASH_SUPPORT=y
> @@ -72,6 +74,7 @@ CONFIG_CMD_SPI=y
>  CONFIG_CMD_USB=y
>  CONFIG_CMD_USB_MASS_STORAGE=y
>  CONFIG_SYS_DISABLE_AUTOLOAD=y
> +CONFIG_CMD_BOOTCOUNT=y
>  CONFIG_CMD_CACHE=y
>  CONFIG_CMD_TIME=y
>  CONFIG_CMD_TIMER=y
> @@ -96,6 +99,8 @@ CONFIG_IP_DEFRAG=y
>  CONFIG_TFTP_TSIZE=y
>  CONFIG_STM32_ADC=y
>  CONFIG_SPL_BLOCK_CACHE=y
> +CONFIG_BOOTCOUNT_LIMIT=y
> +CONFIG_SYS_BOOTCOUNT_MAGIC=0xB0C40000
>  CONFIG_DFU_MMC=y
>  CONFIG_DFU_MTD=y
>  CONFIG_DFU_RAM=y


Reviewed-by: Patrice Chotard <patrice.chotard at foss.st.com>

Thanks
Patrice